I have a 6yr old Ideal Classic LXFF which no longer ignites. I have followed all the standard instructions with no joy. The boiler fires up, the gas sounds like it's being forced through the system and out of the external flue, but there is no visible flame thu the inspection hole. I assume the ignition is knackered ? It sounds likes it's 'clicking' when it should do, oh and there's a f*cking big moth wandering around in there aswell !! How do I get martin the moth out and can I replace the iginition myself ?